Question

5. Find the breadth of the rectangle whose perimeter is 360 cm and whose length is
(i) 140 cm​

Answer 1

Answer:

40cm

Step-by-step explanation:

2(l + b ) = 360

2 ( 140 + b ) = 360

140 + b = 180

b = 40

Answer 2

Answer:

40cm

Step-by-step explanation:

Let the breadth be x

Perimeter of a rectangle = 2×(l+b)

360 = 2×(140+x)

360 = 280 + 2x

2x = 360 - 280

2x = 80

x = 80/2

x = 40cm